定義攔截器

public class LogTimeHandlerInterceptor extends HandlerInterceptorAdapter {
 // 單例多線程 開始時間綁定在線程上
    private ThreadLocal<Long> startTimeThreadLocal = new ThreadLocal<>();
    private static final Logger log = LoggerFactory.getLogger("RequestTime");
 //獲取請求前時間并放入startTimeThreadLocal 
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
            throws Exception {
        long start = System.currentTimeMillis();
        startTimeThreadLocal.set(start);
        return true;
    }
//請求結(jié)束后計算出耗時 日志記錄相關(guān)信息
    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex)
            throws Exception {
        try {
            if (handler instanceof HandlerMethod) {
                HandlerMethod method = (HandlerMethod) handler;
                String className = method.getBeanType().getName();
                String methodName = method.getMethod().getName();
                Long startTime = startTimeThreadLocal.get();
                Long endTime = System.currentTimeMillis();
                StringBuilder logs = new StringBuilder();
              //可在此處獲取當(dāng)前用戶放日志信息里 
                logs.append(" IP:").append(HttpUtil.getIpAddress(request));//獲取請求地址IP 自己實現(xiàn) 
                logs.append(" ").append(className).append("::").append(methodName);
                long time = endTime - startTime;
                logs.append(" 耗時：").append(time).append("(ms)");
                log.info(logs.toString());
            }
        } finally {
             //清理開始時間
            startTimeThreadLocal.remove();
        }
    }
}

可以根據(jù)需求記錄更多信息，也可以把日子信息存入數(shù)據(jù)庫舔痪。

配置攔截器(基于springBoot)

@Configuration
public class WebMvcConfig implements WebMvcConfigurer {
        @Override
        public void addInterceptors(InterceptorRegistry registry) {
            registry.addInterceptor(new LogTimeHandlerInterceptor());
        }
}

效果如下

image.png